Warp-knitting machine



Dec. 26, 1922., ILA 42%238. J. s. PECKER.

WAHF KNITTING MACHINE.

HLED JAN. 12. 1922. 3 SHEETS-SHEET l.

A TTORNE Y.

Dec. 26, 1922. 1,440,238.

' 1, s. PECKER.

WAHP KNlTTlNG MACHINE.

FILED JAN. 12, 1922. 3 SHEETS-SHEET 2.

JOSEPH S. PECKEI? ATTORNEY.

o OO 2 3 T 2 H H 4 4 s 4 T. 7 F 1 rr- H s 3 N uu? 2 RM E K G\ ELW T .TM ND E I H Dec. 26, 1922.

R .E mw ,My L N W WM OE w Patterned Dec., 2e, 192320 JOSEPH S. PECKER, OF PHILADELPHIA, PENNSYLVANIA.

VTARP-KNITTING MACHINE Application filed January 12, 1922. Serial No. 528,776.

T0 &Zhu/1012itimmy concern.'

Be it, known that li, JOSEPH S, PECKER, a citizen of' 'the llnited States, residing at Phil adelphia, in the county of Philadelphia and State ot Pennsylvauia, have invented new and useful improvements in ?Varplnitting Machines, of Which the ;following is a specification.

T he invention relates to a double rib knitting machine in Which pattern 'work, such as embroidery, used in trimming underwear or curtains, or Various patterns of neckties, can be made.

Heretofore in a lznitting machine of this character one of the essential features has been to maintain the needle bar in a perfectly horizontal plane. The only points at which a needle bar can be supported in such a knitting machine are at the ends or" the needle' bar. It has been the practice to suspend this needle bar,, usually an angle iron l .r, on two short bearings, and in order to gire the neces'ssary rise and :tall to the needle har, 'two cauis and 'two sets of lovers have been enwloyed to operate on the .needle bar supports.

.lt the ad'justnients oi'? the lercrs at both ends oi' the needle bar are not absolutely! true, or it the cam sur'taces at both ends of the machine are not al')solutely alike, or it' they are set at a 'traction ot an ai'igle different, it will cause the hearings at *the ends of the machine to bind and Will result in one end of the needle bai' being litted higher than the other. This cross bar or needle bar in its downward movement niusthe pulled down either by springs or Weights, or must depend upon its own weight to overcome the frietion in the bearings. Also after constant operating of such machine one of the levers may give Way at the adjustment points and it will lift th needle bar against a binding t 'ction in the bearings and in the downward movement ol? the needle bar Will ten-d to stirt in bearings and the springs or weights Will he insuiiicient to return the needle bar to the don'nward limit ot its movement. The resuit will he a general hashim.: up of the needles and the spelling 1.` the 'Fabric at that point. t

The object of the present invention is to improve the construction of such knitting ma hines and to provide a simple, practical and etlicient construction which Will be strong and durable and comparatirely in expensive and capable of imparting the rise .and fall motion to the needle bar and of eliminating` all possible shake and Vibration Which Would cause faulty Work and adapted to also obtain a higher speed of operation than has here'totor been possible with inachines of this character.

`With these and other objects in View the invention consists in the construction and novel combination and arrangement of parts hereinafter fully' described, illustrated in the accompanying drawings and pointed out in the claims hereto appended, it being understood that various changes in the form, proportion and minor details of construction, Within the scope of the claims, may be resorted to Without departing from the spirit or sacricing any of the advantagesot' the invention.

In the drawings, in which like characters of reference designate corresponding parts in the several viewsz .Figure 1 is a Vertical sectional View ot a knitting machine embodying the present invention, some parts being oinitted.

Figure 2 is a front elcvation of the same, partly in section.

,Figure 3 is a plan View, partly in section.

l `igure 4 is a detail View of a portion of one of the rocliing levels illustrating the adjustable connection between the same and the adjustable link.

Figure 5 is a. detail sectional View illus trating the construction for adjustably mounting the needle bar.

Figure 6 is a plan View of the same.

Figure 7 is a sectional View of one of the' Cams.

In the accompanying drawings, in Which is illustrated the preferred. embodiment of the invention, the frame of the knitting machine comprises standards 1 tied together by cross horizontal bars 2 and provided at the upper and ,lower portions with Vertically alined top and bottom guide 'Ways 3 for the reception. of Vertically reciprocatingstaffs -it and 5. The upper and lower guide Ways 3, Which in practice are spaced as far apart as the construction of the machine will permit 'in order to afford a firm construction and prevent any possibility of shake or Vibration of the Vertically reciproeating starts 4 and 5 or Variation in the true Vertical motion of the same at either end llO of the machine, consist of brackets bolted or otherwise: secured to the standards of the upper and'l'ower portions thereof', as clearly illustrated in Figure 2 of the drawings, and provided with removable face plates 3 which detachably retain the vertically reciprocating staffs in guiding grooves 3 of the brackets. The guiding grooves 3** of the brackets or guide ways 3 are arranged" in pairs to accommodate the pairs of vertically reciprocating staffs 4 and 5, as clearly shown in Figure 3' of the drawings; and these-id staffs 4 and 5 carry needle bars 7, which are` provided with the usual knitting needlesr.

The.` up and down motion is imparted to the needle bar 7 by carns 8* mounted on the main' operating shaft 9' of the machine and actuatingzrocking levers 10, which are connected by; the' link connections with horizontal bars 14 which tie or. connect the vertically'reciprocating staffs' at opposite sides of-the machine! with each other. The rocking: levers 10 are: arranged centrally of'the machine: and* are connected with the tie bars 14 centrally,` thereof` and are fulcrumed intermediate of their ends on a shaft or pivotl, which' is. supported in spaced centrally arranged brackets 16 and 17. The tiebarsl4 which connect-the staffs 4 and 5 are secured' to the same by bolts- 18 or other suitable fastening means and the needle bars 7 are secured tothe= upper ends of the staffs by bolts 19.

Each rocking lever 10 is provided at its inner" end with a' longitudinal slot' 20, in which is mounted a sliding. block 21 carrying-' a* pin or pivot 22 and secured in its ad ustment by a clamping screw 23. The sliding block 21 is adjustable longitudinally of the slot. 20*by an adjusting` screw 24, journaled' ina: suitable bearing 'lO rocking lever and engaging a threaded bore* 21?*- in the longitudinal slidinghbloclr, whereby; when the clamping screw 23 is loosened and the adjust-ing screw 24 isrotated the slidableblockl willz be moved inwardly or outwardly with respect to` the end of the lever and after an adjustment has been'efi'ected' the clamping screw 23 may be tightened' to se'curely clamp the. sliding block' in its-adjust'ment so that there will be no liability of the rocking motion of: the parts: afiecting the adjustinent of the slid ing' blooki The'link connection between the rocking' lever'and the tie or'connecting bar 14 coniprises upper and' lower' sections 11` and 12,' and the' centrally connecting member13; whichis in'the form of' a right and left hand threaded.' adjusting screw; The

upper and lower sections 11' and 12' are in' section or yoke' the form of yokes, the lower 11 straddling the rocking lever'and having its side portions pivoted to-the sliding block by'the pinorpivot- 22. The upper. section of the or yoke 12 straddles a lug 25 of the cross or connecting bar 14 and-'is pivoted to the same by a pin or pivot 26; The" upper and lower yokes or sections 11 and 12 are provided with threaded openings or sockets li which are engaged by the right and left hand threaded portions of the central adjusting screw or member 13 and the latter is provided with-a centrally arranged polygonal portion adapted to receive a wrench or other suitable tool for rotating, the adjusting screw' 13' to vary the effective length' of' the link or connection between the rocking' lever and the cross or tie bar 14 and the distance between the rocking lever and the needle bar; Lock nuts 11 are provided for securing the adjusting screw in its adjustment. The upper sections 12 of the link connections have' t shaped offset portions 'dispfosed in vertical overlapping relation to= arrange them centrally beneath the needle bars'.

Each roclringzlever is provided at its outer end with a roller 27 which runs: in: a cam groove 8 in the cam 8, and the said groove, which forms a track for the roller; tends to hold the lever in a firm position at any part of the cam and thereby prevents lost motion and eliminates the necessity of employing` supplementary spring tensions or weights to prevent such lost motion..

Theneedle bar 7 is provided at each end with a square hole 28 to receive the vertically needle bar is supported upon a shoulder* 29 of the staff formed by recessingthe latter, as clearly illustrated in Figure 5 of the drawings. The reciprocating staffs 'are rectangularin cross section and the recess which forms' a shoulder or seat 29is provided with an inclined wall or face 29 to fit the inelined face of a vertically adjustable wedge ing screw 31, which ismounted in athread ed opening or socket 33 of the said staff, is-` the upper end of the same with a head which fits ina horizontal groove' in the adjacent faceof the wedge 30. The' provided above screw is capable of Vertical adjustment to raise and. lower the wedge 30 and the wedge 30 will effect ahorizontal adj'ustnient of' the needle bar 7. The Screws 19 elamp the neo-- dle bar in its adjustnient and the adjusting nieans of' the needle baris adapted to maintain a square seat of the needle bar on the' ends of the staffs.

By connecting the links of the rocking. levers with the` cross or tie bars 14' at the centers thereof the mechanisrn for imparting a rise and fall motion. to the needle bars is applied at the center of* gravity or center'of reciprocating staffs 4 and' 5 and the rockin levers, links and Cams are arranged in closii proximity to one another. The rock ing levers permit of a fine adjustment of the link connection and at the same time provide for a quick and positive adjustment of the pivotal connections between the rocking levers and the links. Also the long staffs are provided for guiding the needle bars in their movements.

`What is claimed is:

1. A knitting machine including a frame having top and bottom guides, long staffs extending from the top to the bottom of the frame and reciprocating vertically in the guides, a needle bar Carrier by the staffs, and mechanism for imparting a rise and fall motion to the needle bars.

9,. A knitting machine including a frame having top and bottom guides, long staffs extending from the top to the bottom of the frame and reciprocating vertically in the guides, a needle bar carried by the staffs, and mechanism centrally connected with the needle bar at a point intermediate of the ends of the staffs for imparting a rise and fall motion to the same.

3. A knitting machine including a frame, guides secured to the sides of the frame, long staffs arranged in pairs and extending from the top to the bottom of the frame and reciprocating vertically in said guides, and mechanism for imparting a rise and fall motion to the needle bars connected with the same centrally thereof.

4. A knitting machine including a frame, brackets located at the top and bottom of the frame and provided with guide grooves and having inner removable face plates covering the said grooves, staffs extending from the top to the bottom of the frame and reciprocating vertically in the guide grooves of the brackets, a needle bar carried by the staffs, and means for imparting a rise and fall motion to the needle bar, said means being centrally arranged and located intermediate of the ends of the; staffs.

5. A knitting machine including a frame, bracl-:ets located at the top and bottom of the frame and secured to the sides of the same and provided with guide grooves arranged in pairs, long staffs square in cross section extendin from the top to the bottom of the frame and reciprocating vertically in the said grooves, needle bars carried by the staffs, and means for imparting a rise and fall motion to the needle bars.

6. A knitting machine including vertically reciprocating staffs having horizontal shoulders forming seats, guide ways for the staffs. and a needle bar adjustable horizontally on the seats, means for moving the needle bar inwardly and outwardly, and means for securing the needle bar in its adj ustment.

7. A knitting machine including vertically reciprocating staffs having shoulders forming seats, guide ways for the staffs, a needle bar arranged on the Sait seats and provided with openings receiving the staffs, means for moving the needle bar horizontally on the seats, and means for securing the needle bar in its adjustment. i

8. A knitting machine including vertically reciprocating staffs having shoulders fornn ing seats, guide ways for the staffs, a needle bar arranged on the sai-d seats and provided with openings receiving the staffs, and adjustable Wedges interposcd between the nee-- dle bar and the staffs for adjusting tie needle bar horizontally on the seats.

9. A lrnitting machine including vertically reciprocating staffs having shoulders forming seats, guide ways for the staffs, needle ntr arranged on the said seats and provided with openings receiving the staffs, Wedges interposed between the needle bar and the staffs, and vertical adjusting screws mounted on the staffs and connected with the Wedges for adjusting the needle bar horizontally on the seats.

10. A knitting machine including vertically reciprocating staffs having shoulders forming seats, guide ways for the staffs, a needle bar arranged on the said seats and 'n'ovided with openings receiving the staffs, Wedges interposed between the needle bar and the staffs, and horizontal Screws piero ingthe staffs and connected with the needle bar for secnring the same in its adjustment.

'11. A knitting ,machine including staffs extending from the top to the bottom of the frame, means for guiding the same, a needle bar carried by the staffs, and central mechanism for imparting a rise and :fall motion to the needle bar, located between the staffs intermediate of the ends thereof comprising a rocking lever, a cam for actnating the rocking lever, and a link connection between the rocking lever and the needle bar.

12. A knitting machine including needle bars, means mounted on the sides of the frame for guiding the same and including vertical staffs extending from the top to the bottom of the frame, centrally arranged mechanisms for imparting a rise and fall motion to the needle bars located between the sides intermediate of the ends thereof comprising rocking levers, link connections having offset centrally arranged upper ends connected with the needle bars beneath the centers of the same, and means for actuating the rocking levers.

13. A knitting machine including a needle bar, means mounted on the sides of the frame for slidably mounting the same for up and down movement and including vernaaoese tical staffs exten'ding from' the top to' the bottom of the frame, and centrally arranged mechanism for imparting a rise and fall movement to the' needle bar, located between the' staffs intermediate of the ends of the same comprising a roclring lever, a link connection between the rocking lever and the needle bar, having a pivot adjustable longitudinallyof the' lever, and means for actuating the' lever.

.14. A knitting machine including a needle bar, means for slidably mounting the same for up* and down movement, said means including guides mounted on the sides of the frame and Vertical staffs extending from the top to the bottom of the frame and slidable in the said guides and centrally arranged mechanism for imparting a rise and fall movement to the needle bar, located between the staffs intermediate of the ends thereof comprising a roelring lever having a'longitudinal slot, a'block slidable in and adjustable' along the slot and provided with a pivot, a link connection between the pivot and the needle bar, and means for actuating the rocking lever.

15. A knitting machine including a needle bar,, means for slidably mounting the same' for up and down movement, said means including guides mounted on the sides of the frame and vertical staffs extending from the top to the bottom of the same and slidable inthe guides and centrally arranged mechanism for imparting a' rise and fall movement to the needle bar, located between the staffs intermediate of the ends of the same comprising a rocking lever having alongitudinal slot, a block slid-able in and adjustable along the slot and provided with a pivot, a link connection between the pivot and the 'needle bar, a' longitudinal adj usting screw mounted on the lever and connected with the block, a olamping screw' also mounted on'the lever and engaging the said block, and means for actuating the lever.

16. A. knitting machine including` a needle bar, means for slidably' mounting thesame for up and down movement, said means including guides mounted on the frame'at the tepand bottom thereof' and staffs extending from the top to the bottom of the frame and slidable in' the guides and centrally arranged mechanism for imparting a rise and fall movement to the needle bar, located between. the staffs intermediate of the ends thereof comprising a rooking lever, a link connection between the roelring lever and the needle bar, composcd'of upper and lower sections and an intermediate right and left hand threaded connecting screw for varying the effective length of" the link, and means for actuating the lever.

17. A knitting machine including a needle bar', means for slidably mounting the same for up and down movement, said` means in'- cluding vertical staffs extending' from the top to the bottom of the frame and slidably mounted on the sides of the same and mechanism arranged to impart a rise* and fall movement to the needle bar, located between the staffs intermediate of the ends thereof comprising a'roeking lever, means for connecting the rocking lever with the needle bar, and a cam having a groove for actuating the roclring lever with'a true' and steady motion.

18. A; knitting machine'including a frame, vertically reciprocating staffs guided at op# posite sides of the frame and' eXtendi'n-g from the top tothe bottom of the same, needle bars' carried by the staffs', tie' bars con"- necting the staffs intermediate of the ends thereof, centrally arranged bearing brackets, an operating shaft journaled in the bearing braclrets, a pair' of rocking levers` fulcrumed between the bearing' braclets and connected at* their inner endswith the said tie bars, and` Cams mounted* on said sh'aft located at the outer endsof the levers for actuating the same:

19. A knitting machine'in'cluding a frame, vertically reciprocating staffs' guided at op'- posite sides of the frame and extending from' the top to the bottomof the same, needle bars carried by the staffs, tie bars connecting the staffs intermediate of the ends' of the same, centrally arranged bearing braclr'et's located between said staffs, an operating shaft journaled in the bearing brackets, a pair of rocki'ng levers fulcrumed' between the bearing braclrets, link connections between the rocking levers and the tie bars, said link connections having offset ends located centrally beneath the needle'bars, and means located at the outer ends 'of the rocking levers for actuating the same.

20. A lrnitting machine including a' frame, vertically reciprocating staffs guided' at opposite sides of the frame and extending froni` the top to the bottom of* the same, needle bars carried by the staffs, tie bars connecting the staffs intermediate of theends of the same, centrally arranged bearing brackets located between the staffs, a driving or operating' V shaft journaled in the bearing" brackets, a

pair of rocking levers fulcrumed between the bearing braclrets, link connections between the rocking levers and the tie bars, said link' connections having offset ends located centrally beneath the needle bars, cams located at the outer ends of the rocking levers and provided with cam grooves, and means carried by the rocking levers forengaging the cam grooves.

In testimony whereof I have hereunto set my'hand.

JOSEPH s. ?sonna 

